Linguistic semantics is one of the important aspects in the comprehension and analysis of texts in the various fields of Arabic sciences; including that of exegesis. Therefore, exege tesdid not miss the role of the linguistic semantics in understanding the meanings of the Noble Qur’an and its objectives, and the deduction of its rules. This study aims at analytical description of the sources of the Arabic semantics and its aspects in the exegesis of the scholar: Mohammed Kaabeche, as a methodological and cognitive basis from which he could understand the meanings of Qur'an.The study is limited to his exegesis of Surat Al-Nur, entitled: (i.e. Expanding breasts in the exegesis of Surah An-Nur). The study of this type of semantics sought a review of knowledge associated with the Arabic language and its linguistic system; which needed to monitor some of its dimensions, revealing some of its hidden parts.The methodology required to have five sections, an introduction and a conclusion containing the results of the study.